CRI-02 - Helichrysetalia italici Biondi et Géhu in Géhu et Biondi 1994

Classification phytosociologique européenne (Eurovegchecklist, 2016)

Diagnose

Sub-aerohaline coastal dwarf scrub on inland edges of salt-sprayed cliffs of the Mediterranean seaboards

Remarques

cri08 : The communities of this order are found in a natural ecotone between the coastal vegetation under direct influence of sea-born salt spray and the coastal tomillar/phrygana and garrigue occupying coastal habitats, yet without marked influence of air-borne salt. This transitional position would suggest that this order might be classified either within the Rosmarinetea (at least in the Western and Central Mediterranean) or within the Crithmo-Staticetea. The original (Géhu & Biondi 1994) classification of this order within the Helichryso-Crucianelletea maritimae is not logical as the Helichryso-Crucianelletea maritimae was coined to capture vegetation of stabilized grey hind dunes (see Bon & Géhu 1973), hence soft sedimentary substrates, whereas the Helichrysetalia italici comprise communities of hard-rock, coastal cliff habitats. The intricacy of this situation comes to light in a paper by Biondi (2007) who classified a part of the Helichrysetalia italici within the Rosmarinetea or the Helichryso-Crucianelletea while the other part (Senecionetalia cinereae, with the type alliance Anthyllidion barbae-jovis) was classified in the Crithmo-Staticetea. (LM).

Bibliographie

 Mucina L., Bültmann H., Dierßen K., Theurillat J.-P., Raus Th., Čarni A., Šumberová K., Willner W., Dengler J., Gavilán García R., Chytrý M., Hájek M., Di Pietro R., Iakushenko D., Pallas J., Daniëls F.J.A., Bergmeier E., Santos Guerra A., Ermakov N., Valachovič M., Schaminée J.H.J., Lysenko T., Didukh Y.P., Pignatti S., Rodwell J.S., Capelo J., Weber H.E., Solomeshch A., Dimopoulos P., Aguiar C., Hennekens S.M. & Tichý L., 2016. Vegetation of Europe: hierarchical floristic classification system of vascular plant, bryophyte, lichen, and algal communities. Applied Vegetation Science, 19 (Suppl. 1) : 3-264. (Source)